a******n: shirlsharrah: how much tax would be on 113.98 at 9%
113.98 X 0.9 = 9% so, when you get that 9% do:
113.98 + 9%
for short -> 113.98 + (113.98 x 0.9)
Let me clean something up. 9%= .09, not .9 or anything else.
with .9, the 9 is in the tenths place, so 9 over 10, or 9/10. When you make that a percentage [make the denominator(bottom #) a 100], you multiply the fraction (9/10) by ten on both the top and the bottom, meaning (90/100), or 90%. We don't want to be making that kind of mistake. If you are ever given a percent and have to use it as a decimal, say you're given 13%, you take the number used as a percent, 13, or 13.0, and move the decimal over 2 spaces to the left: .13=13%
If you're given .05%, you do the same thing, move the decimal in .05 over two spaces to the left: .0005=.05%
Ok, now to answer the question and correct one more thing. The question this person is asking is HOW MUCH TAX would be on 113.98 at 9. Not, respectively, how much something would cost with tax added/subtract from it, so the answer is simply the percent(as a decimal) times the value.
[113.98x(.09)]